you don't
An HP UP increases the maximum number of HP (hitpoints) a Pokemon has. This allows it to absorb more damage from attacks before it faints.
The Pokemon with the lowest HP is Shedinga. The base HP for this guy is 1, and stays that way no matter what unless you hack. It at least has the ability Wonder Guard to make up for this.
the two best ways would be to lvl. them up or use lots of HP ups.
You can buy HP Ups at the Shopping Mall 9 on Route 9.
Okay: 1:It's PLATINUM not PLATNOM. 2:It's a Pokemon game that's an upgraded version of Pokemon pearl and diamond.
migrate it from firered, or leafgreen
online? no
you don't
In Pokemon platnom the door opens magically when you catch the newest Pokemon CROWLEY caught at an event and when you go tho the door it should be open.
You first need Action Replay. Then look up the Darkrai code on google. It is as simple as that.
you need to have the national pokedex
Migrate one from leafgreen.
march 22
to get regirock in Pokemon platinum, you have to upload it from ruby, Sapphire, or emerald.
I think around lvl 20
you can only get him in ranger or cheat